<?php
/*******************************************************************
 * [JishiGou] (C)2005 - 2099 Cenwor Inc.
 *
 * This is NOT a freeware, use is subject to license terms
 *
 * @Filename thumb.class.php $
 *
 * @Author http://www.jishigou.net $
 *
 * @Date 2011-09-09 10:58:30 1422883611 1064839817 31979 $
 *******************************************************************/


if(!defined('IN_CZBD'))
{
    exit('invalid request');
}

 

 

class ThumbHandler
{
    var $dst_img;    var $h_src;     var $h_dst;    var $h_mask;    var $img_create_quality = 100;    var $img_display_quality = 75;    var $img_scale = 0;    var $src_w = 0;    var $src_h = 0;    var $dst_w = 0;    var $dst_h = 0;    var $fill_w;    var $fill_h;    var $copy_w;    var $copy_h;    var $src_x = 0;    var $src_y = 0;    var $start_x;    var $start_y;    var $mask_word;    var $mask_img;    var $mask_type=0;    var $mask_pos_x = 0;    var $mask_pos_y = 0;    var $mask_offset_x = 5;    var $mask_offset_y = 5;    var $font_w;    var $font_h;    var $mask_w;    var $mask_h;    var $mask_font_color = "#ffffff";    var $mask_font = 2;    var $font_size;    var $mask_position = 0;    var $mask_img_pct = 50;    var $mask_txt_pct = 50;    var $img_border_size = 0;    var $img_border_color;    var $_flip_x=0;    var $_flip_y=0; 
    var $cut_type=0; 
 
    var $img_type; 
        var $all_type = array(
        "jpg"  => array("output"=>"imagejpeg", "create"=>"imagecreatefromjpeg"),
        "gif"  => array("output"=>"imagegif", "create"=>"imagecreatefromgif"),
        "png"  => array("output"=>"imagepng", "create"=>"imagecreatefrompng"),
        "wbmp" => array("output"=>"image2wbmp", "create"=>"imagecreatefromwbmp"),
        "jpeg" => array("output"=>"imagejpeg", "create"=>"imagecreatefromjpeg")
    );
 
    
    function ThumbHandler()
    {
        $this->mask_font_color = "#ffffff";
        $this->font = 2;
        $this->font_size = 12;
    }
 
    
    function getImgWidth($src)
    {
        return imagesx($src);
    }
 
    
    function getImgHeight($src)
    {
        return imagesy($src);
    }
 
    
    function setSrcImg($src_img, $img_type=null)
    {
        if(!is_file($src_img))
        {
        	return false;
        }
        
        if(!empty($img_type))
        {
            $this->img_type = $img_type;
        }
        else
        {
            $this->img_type = $this->_getImgType($src_img);
        }
        
        $this->_checkValid($this->img_type);
 
        
        
        $img_type  = $this->img_type;
        $func_name = $this->all_type[$img_type]['create'];
        if(function_exists($func_name)) {
        	$im = @$func_name($src_img);
        } else {
        	return;
        }
        $this->h_src = $im;        $this->src_w = $this->getImgWidth($this->h_src);
        $this->src_h = $this->getImgHeight($this->h_src);
    }
 
    
    function setDstImg($dst_img)
    {		

        $arr  = explode('/',$dst_img);
        $last = array_pop($arr);
        $path = implode('/',$arr);
        $this->_mkdirs($path);
        $this->dst_img = $dst_img;
    }
 
    
    function setImgDisplayQuality($n)
    {
        $this->img_display_quality = (int)$n;
    }
 
    
    function setImgCreateQuality($n)
    {
        $this->img_create_quality = (int)$n;
    }
 
    
    function setMaskWord($word)
    {
        $this->mask_word .= $word;
    }
 
    
    function setMaskFontColor($color="#ffffff")
    {
        $this->mask_font_color = $color;
    }
 
    
    function setMaskFont($font=2)
    {
        if(!is_numeric($font) && !is_file($font))
        {
        	return false;
        }
        $this->font = $font;
    }
 
    
    function setMaskFontSize($size = "12")
    {
        $this->font_size = $size;
    }
 
    
    function setMaskImg($img)
    {
        $this->mask_img = $img;
    }
 
    
    function setMaskOffsetX($x)
    {
        $this->mask_offset_x = (int)$x;
    }
 
    
    function setMaskOffsetY($y)
    {
        $this->mask_offset_y = (int)$y;
    }
 
    
    function setMaskPosition($position=0)
    {
        $this->mask_position = ($position<0 ? rand(1,4) : (int) ($position % 4));
    }
 
    
    function setMaskImgPct($n)
    {
        $this->mask_img_pct = (int)$n;
    }
 
    
    function setMaskTxtPct($n)
    {
        $this->mask_txt_pct = (int)$n;
    }
 
    
    function setDstImgBorder($size=1, $color="#000000")
    {
        $this->img_border_size  = (int)$size;
        $this->img_border_color = $color;
    }
 
    
    function flipH()
    {
        $this->_flip_x++;
    }
 
    
    function flipV()
    {
        $this->_flip_y++;
    }
 
    
    function setCutType($type)
    {
        $this->cut_type = (int)$type;
    }
 
    
    function setRectangleCut($width, $height)
    {
        $this->fill_w = (int)$width;
        $this->fill_h = (int)$height;
    }
 
    
    function setSrcCutPosition($x, $y)
    {
        $this->src_x  = (int)$x;
        $this->src_y  = (int)$y;
    }
 
    
    function createImg($a, $b=null)
    {
        $num = func_num_args();
        if(1 == $num)
        {
            $r = (int)$a;
            if($r < 1)
            {
            	return false;
            }
            $this->img_scale = $r;
            $this->_setNewImgSize($r);
        }

        if(2 == $num)
        {
            $w = (int)$a;
            $h = (int)$b;
            if(0 == $w)
            {
            	return false;
            }
            if(0 == $h)
            {
            	return false;
            }
            $this->_setNewImgSize($w, $h);
        }
        
        if($this->_flip_x%2!=0)
        {
            $this->_flipH($this->h_src);
        }
  
        if($this->_flip_y%2!=0)
        {
            $this->_flipV($this->h_src);
        }
      
       if($this->_createMask()) {
       		$this->_output();
       }

        if(@imagedestroy($this->h_src) && @imagedestroy($this->h_dst))
        {
            Return true;
        }
        else
        {
            Return false;
        }
    }
 
    
    function _createMask()
    {
        if($this->mask_word)
        {
                        $this->_setFontInfo();
 
            if($this->_isFull())
            {
               
               return false;
            }
            else
            {
            
                $this->h_dst = imagecreatetruecolor($this->dst_w, $this->dst_h);
                $white = ImageColorAllocate($this->h_dst,255,255,255);
                imagefilledrectangle($this->h_dst,0,0,$this->dst_w,$this->dst_h,$white);                $this->_drawBorder();
                imagecopyresampled( $this->h_dst, $this->h_src,
                                    $this->start_x, $this->start_y,
                                    $this->src_x, $this->src_y,
                                    $this->fill_w, $this->fill_h,
                                    $this->copy_w, $this->copy_h);
                $this->_createMaskWord($this->h_dst);
            }
        }
 
        if($this->mask_img)
        {
            $this->_loadMaskImg(); 			if(false == $this->_checkMaskValid()) {
 				return false;
 			}

            if($this->_isFull())
            {
                                $this->_createMaskImg($this->h_src);
                $this->h_dst = imagecreatetruecolor($this->dst_w, $this->dst_h);
                $white = ImageColorAllocate($this->h_dst,255,255,255);
                imagefilledrectangle($this->h_dst,0,0,$this->dst_w,$this->dst_h,$white);                $this->_drawBorder();
                imagecopyresampled( $this->h_dst, $this->h_src,
                                    $this->start_x, $this->start_y,
                                    $this->src_x, $this->src_y,
                                    $this->fill_w, $this->start_y,
                                    $this->copy_w, $this->copy_h);
            }
            else
            {
                                $this->h_dst = imagecreatetruecolor($this->dst_w, $this->dst_h);
                $white = ImageColorAllocate($this->h_dst,255,255,255);
                imagefilledrectangle($this->h_dst,0,0,$this->dst_w,$this->dst_h,$white);                $this->_drawBorder();
                imagecopyresampled( $this->h_dst, $this->h_src,
                                    $this->start_x, $this->start_y,
                                    $this->src_x, $this->src_y,
                                    $this->fill_w, $this->fill_h,
                                    $this->copy_w, $this->copy_h);
                $this->_createMaskImg($this->h_dst);
            }
        }
 
        if(empty($this->mask_word) && empty($this->mask_img))
        {
            $this->h_dst = imagecreatetruecolor($this->dst_w, $this->dst_h);
            $white = ImageColorAllocate($this->h_dst,255,255,255);
            imagefilledrectangle($this->h_dst,0,0,$this->dst_w,$this->dst_h,$white);            $this->_drawBorder();
 
            imagecopyresampled( $this->h_dst, $this->h_src,
                        $this->start_x, $this->start_y,
                        $this->src_x, $this->src_y,
                        $this->fill_w, $this->fill_h,
                        $this->copy_w, $this->copy_h);
        }

		return true;
    }
 
    
    function _drawBorder()
    {
        if(!empty($this->img_border_size))
        {
            $c = $this->_parseColor($this->img_border_color);
            $color = ImageColorAllocate($this->h_src,$c[0], $c[1], $c[2]);
            imagefilledrectangle($this->h_dst,0,0,$this->dst_w,$this->dst_h,$color);        }
    }
 
    
    function _createMaskWord($src)
    {
        $this->_countMaskPos();
        $this->_checkMaskValid();
 
        $c = $this->_parseColor($this->mask_font_color);
        $color = imagecolorallocatealpha($src, $c[0], $c[1], $c[2], $this->mask_txt_pct);
 
        if(is_numeric($this->font))
        {
            imagestring($src,
                        $this->font,
                        $this->mask_pos_x, $this->mask_pos_y,
                        $this->mask_word,
                        $color);
        }
        else
        {
            imagettftext($src,
                        $this->font_size, 0,
                        $this->mask_pos_x, $this->mask_pos_y+14,
                        $color,
                        $this->font,
                        $this->mask_word);
            if(isset($this->mask_word2))
            {
            	if(isset($this->mask_txt_pct2)) 
            	{
            		$color = imagecolorallocatealpha($src, $c[0], $c[1], $c[2], $this->mask_txt_pct2);
            	}
            	
	            imagettftext($src,
	                        $this->font_size+7, 0,
	                        $this->mask_pos_x+140, $this->mask_pos_y-$this->font_size,
	                        $color,
	                        $this->font,
	                        $this->mask_word2);
            }
        }
    }
 
    
    function _createMaskImg($src)
    {
        $this->_countMaskPos();
        $this->_checkMaskValid();
        if($this->img_type)
        {
	        imagecopy($src,
	                        $this->h_mask,
	                        $this->mask_pos_x ,$this->mask_pos_y,
	                        0, 0,
	                        $this->mask_w, $this->mask_h);
        }
        else
        {
	        imagecopymerge($src,
	                        $this->h_mask,
	                        $this->mask_pos_x ,$this->mask_pos_y,
	                        0, 0,
	                        $this->mask_w, $this->mask_h,
	                        $this->mask_img_pct);
        }
 
        imagedestroy($this->h_mask);
    }
 
    
    function _loadMaskImg()
    {
        $mask_type = $this->_getImgType($this->mask_img);
        $this->_checkValid($mask_type);
 
                $src = '';
        if(function_exists("file_get_contents"))
        {
            $src = file_get_contents($this->mask_img);
        }
        else
        {
            $handle = fopen ($this->mask_img, "r");
            while (!feof ($handle))
            {
                $src .= fgets($handle, 4096);
            }
            fclose ($handle);
        }
        if(empty($this->mask_img))
        {
        	return false;
        }
        $this->h_mask = ImageCreateFromString($src);
        $this->mask_w = $this->getImgWidth($this->h_mask);
        $this->mask_h = $this->getImgHeight($this->h_mask);
    }
 
    
    function _output()
    {
        $img_type  = $this->img_type;
        $func_name = $this->all_type[$img_type]['output'];
        if(function_exists($func_name))
        {
                        if(isset($_SERVER['HTTP_USER_AGENT']))
            { 
                $ua = strtoupper($_SERVER['HTTP_USER_AGENT']);
                if(!preg_match('/^.*MSIE.*\)$/i',$ua))
                {
									                }
            }
            
            @$func_name($this->h_dst, $this->dst_img, $this->img_display_quality);
        }
        else
        {
            Return false;
        }
    }
 
    
    function _parseColor($color)
    {
        $arr = array();
        for($ii=1; $ii<strlen($color); $ii++)
        {
            $arr[] = hexdec(substr($color,$ii,2));
            $ii++;
        }
 
        Return $arr;
    }
 
    //水印摆放的位置
    function _countMaskPos()
    {
        if($this->_isFull())
        {
            switch($this->mask_position)
            {
                case 1:
                                        $this->mask_pos_x = $this->mask_offset_x + $this->img_border_size;
                    $this->mask_pos_y = $this->mask_offset_y + $this->img_border_size;
                    break;
 
                case 2:
                                        $this->mask_pos_x = $this->mask_offset_x + $this->img_border_size;
                    $this->mask_pos_y = $this->src_h - $this->mask_h - $this->mask_offset_y;
                    break;
 
                case 3:
                                        $this->mask_pos_x = $this->src_w - $this->mask_w - $this->mask_offset_x;
                    $this->mask_pos_y = $this->mask_offset_y + $this->img_border_size;
                    break;
 
                case 4:
                                        $this->mask_pos_x = $this->src_w - $this->mask_w - $this->mask_offset_x;
                    $this->mask_pos_y = $this->src_h - $this->mask_h - $this->mask_offset_y;
                    break;
                    
               case 5:
                	                	$this->mask_pos_x = rand(($this->mask_offset_x + $this->img_border_size),($this->dst_w - $this->mask_w - $this->mask_offset_x - $this->img_border_size));
                	$this->mask_pos_y = rand(($this->mask_offset_y + $this->img_border_size),($this->dst_h - $this->mask_h - $this->mask_offset_y - $this->img_border_size));
 					break;
 					
                default:
                                        $this->mask_pos_x = $this->src_w - $this->mask_w - $this->mask_offset_x;
                    $this->mask_pos_y = $this->src_h - $this->mask_h - $this->mask_offset_y;
                    break;
            }
        }
        else
        {
            switch($this->mask_position)
            {
                case 1:
                                        $this->mask_pos_x = $this->mask_offset_x + $this->img_border_size;
                    $this->mask_pos_y = $this->mask_offset_y + $this->img_border_size;
                    break;
 
                case 2:
                                        $this->mask_pos_x = $this->mask_offset_x + $this->img_border_size;
                    $this->mask_pos_y = $this->dst_h - $this->mask_h - $this->mask_offset_y - $this->img_border_size;
                    break;
 
                case 3:
                                        $this->mask_pos_x = $this->dst_w - $this->mask_w - $this->mask_offset_x - $this->img_border_size;
                    $this->mask_pos_y = $this->mask_offset_y + $this->img_border_size;
                    break;
 
                case 4:
                                        $this->mask_pos_x = $this->dst_w - $this->mask_w - $this->mask_offset_x - $this->img_border_size;
                    $this->mask_pos_y = $this->dst_h - $this->mask_h - $this->mask_offset_y - $this->img_border_size;
                    break;
                    
                case 5:
                	                	$this->mask_pos_x = rand(($this->mask_offset_x + $this->img_border_size),($this->dst_w - $this->mask_w - $this->mask_offset_x - $this->img_border_size));
                	$this->mask_pos_y = rand(($this->mask_offset_y + $this->img_border_size),($this->dst_h - $this->mask_h - $this->mask_offset_y - $this->img_border_size));
 					break;
 					
                default:
                                        $this->mask_pos_x = $this->dst_w - $this->mask_w - $this->mask_offset_x - $this->img_border_size;
                    $this->mask_pos_y = $this->dst_h - $this->mask_h - $this->mask_offset_y - $this->img_border_size;
                    break;
            }
        }
    }
 
    
    function _setFontInfo()
    {
        if(is_numeric($this->font))
        {
            $this->font_w  = imagefontwidth($this->font);
            $this->font_h  = imagefontheight($this->font);
 
                        $word_length   = strlen($this->mask_word);
            $this->mask_w  = $this->font_w*$word_length;
            $this->mask_h  = $this->font_h;
        }
        else
        {
            $arr = imagettfbbox ($this->font_size,0, $this->font,$this->mask_word);
            $this->mask_w  = abs($arr[0] - $arr[2]);
            $this->mask_h  = abs($arr[7] - $arr[1]);
        }
    }
 
    
    function _setNewImgSize($img_w, $img_h=null)
    {
        $num = func_num_args();
        if(1 == $num)
        {
            $this->img_scale = $img_w;            $this->fill_w = round($this->src_w * $this->img_scale / 100) - $this->img_border_size*2;
            $this->fill_h = round($this->src_h * $this->img_scale / 100) - $this->img_border_size*2;
 
            $this->src_x  = 0;
            $this->src_y  = 0;
            $this->copy_w = $this->src_w;
            $this->copy_h = $this->src_h;
 
            $this->dst_w   = $this->fill_w + $this->img_border_size*2;
            $this->dst_h   = $this->fill_h + $this->img_border_size*2;
        }
 
        if(2 == $num)
        {
            $fill_w   = (int)$img_w - $this->img_border_size*2;
            $fill_h   = (int)$img_h - $this->img_border_size*2;
            if($fill_w < 0 || $fill_h < 0)
            {
            	return false;
            }
            $rate_w = $this->src_w/$fill_w;
            $rate_h = $this->src_h/$fill_h;
 
            switch($this->cut_type)
            {
                case 0:
                                        if($rate_w < 1 && $rate_h < 1)
                    {
                        $this->fill_w = (int)$this->src_w;
                        $this->fill_h = (int)$this->src_h;
                    }
                    else
                    {
                        if($rate_w >= $rate_h)
                        {
                            $this->fill_w = (int)$fill_w;
                            $this->fill_h = round($this->src_h/$rate_w);
                        }
                        else
                        {
                            $this->fill_w = round($this->src_w/$rate_h);
                            $this->fill_h = (int)$fill_h;
                        }
                    }
 
                    $this->src_x  = 0;
                    $this->src_y  = 0;
 
                    $this->copy_w = $this->src_w;
                    $this->copy_h = $this->src_h;
 
                                        $this->dst_w   = $this->fill_w + $this->img_border_size*2;
                    $this->dst_h   = $this->fill_h + $this->img_border_size*2;
                    break;
 
                                case 1:
                                        if($rate_w >= 1 && $rate_h >=1)
                    {
                        if($this->src_w > $this->src_h)
                        {
                            $src_x = round($this->src_w-$this->src_h)/2;
                            $this->setSrcCutPosition($src_x, 0);
                            $this->setRectangleCut($fill_h, $fill_h);
 
                            $this->copy_w = $this->src_h;
                            $this->copy_h = $this->src_h;
                            
                        }
                        elseif($this->src_w < $this->src_h)
                        {
                            $src_y = round($this->src_h-$this->src_w)/2;
                            $this->setSrcCutPosition(0, $src_y);
                            $this->setRectangleCut($fill_w, $fill_h);
 
                            $this->copy_w = $this->src_w;
                            $this->copy_h = $this->src_w;
                        }
                        else
                        {
                            $this->setSrcCutPosition(0, 0);
                            $this->copy_w = $this->src_w;
                            $this->copy_h = $this->src_w;
                            $this->setRectangleCut($fill_w, $fill_h);
                        }
                    }
                    else
                    {
                        $this->setSrcCutPosition(0, 0);
                        $this->setRectangleCut($this->src_w, $this->src_h);
 
                        $this->copy_w = $this->src_w;
                        $this->copy_h = $this->src_h;
                    }
                    
                                        $this->dst_w   = $this->fill_w + $this->img_border_size*2;
                    $this->dst_h   = $this->fill_h + $this->img_border_size*2;
                    break;
 
                                case 2:
                    $this->copy_w = $this->fill_w;
                    $this->copy_h = $this->fill_h;
 
                                        $this->dst_w   = $this->fill_w + $this->img_border_size*2;
                    $this->dst_h   = $this->fill_h + $this->img_border_size*2;                
                    
                    break;
                default:
                    break;
 
            }
        }
 
                $this->start_x = $this->img_border_size;
        $this->start_y = $this->img_border_size;
    }
 
    
    function _isFull()
    {
        Return (   $this->mask_w + $this->mask_offset_x > $this->fill_w
                || $this->mask_h + $this->mask_offset_y > $this->fill_h)
                   ?true:false;
    }
 
    
    function _checkMaskValid()
    {
        if($this->mask_w + $this->mask_offset_x > $this->src_w
            || $this->mask_h + $this->mask_offset_y > $this->src_h)
        {
                      return false;
        }
		return true;
    }
 
    
    function _getImgType($file_path)
    {
        $type_list = array("1"=>"gif","2"=>"jpg","3"=>"png","4"=>"swf","5" => "psd","6"=>"bmp","15"=>"wbmp");
        if(is_file($file_path))
        {
            $img_info = @getimagesize ($file_path);
            if(isset($type_list[$img_info[2]]))
            {
                Return $type_list[$img_info[2]];
            }
        }
        else
        {
        	return false;
        }
    }
 
    
    function _checkValid($img_type)
    {
        if(!array_key_exists($img_type, $this->all_type))
        {
            Return false;
        }
    }
 
    
    function _mkdirs($path)
    {		 
        $adir = explode('/',$path);
        $dirlist = '';
        $rootdir = array_shift($adir);
        if(($rootdir!='.'||$rootdir!='..')&&!is_dir($rootdir))
        {
            @mkdir($rootdir);
        }
         
        foreach($adir as $key=>$val)
        {
        	
            if($val!='.'&&$val!='..')
            {
                $dirlist .= "/".$val;
                $dirpath = $rootdir.$dirlist;
                if(!is_dir($dirpath))
                {
                    @mkdir($dirpath);
                    @chmod($dirpath,0777);
                }
               
            }
        }
    }
 
    
    function _flipV($src)
    {
        $src_x = $this->getImgWidth($src);
        $src_y = $this->getImgHeight($src);
 
        $new_im = imagecreatetruecolor($src_x, $src_y);
        for ($y = 0; $y < $src_y; $y++)
        {
            imagecopy($new_im, $src, 0, $src_y - $y - 1, 0, $y, $src_x, 1);
        }
        $this->h_src = $new_im;
    }
 
    
    function _flipH($src)
    {
        $src_x = $this->getImgWidth($src);
        $src_y = $this->getImgHeight($src);
 
        $new_im = imagecreatetruecolor($src_x, $src_y);
        for ($x = 0; $x < $src_x; $x++)
        {
            imagecopy($new_im, $src, $src_x - $x - 1, 0, $x, 0, 1, $src_y);
        }
        $this->h_src = $new_im;
    }
}
?>
